Losing ability to save with Ubuntu 12.10 [closed]

When I've got Libreofficewriter and Libreoffice calc open together I often lose the ability to save both the open doc or open spreadsheet and the ability to exit either program. This is using Libreoffice that comes with Ubuntu 12.10.

The menus are there but fail to function. For example File->Exit is there but does not function. The only way to exit is via the little red X on the menu bar. If there is something to save it will prompt with the option to save. I have occasionally seen this behaviour when I've had two files open in writer only but more often when writer and calc are both open. The version of LO is 3.6.2.2.